We are extremely proud of our industry’s accreditations here at Timberwise. All the property care services our surveyors and technicians are vetted and checked by a number of organisations. The list down below shows the list of memberships and accreditations we are involved with:


Formerly part of the BWPDA (British Wood Preservation Association), the PCA is a trade association that represents the property preservation industry. They represent a range of sectors including damp proofing, structural waterproofing, structural repairs and timber preservation. The PCA promotes all its members to provide the best practice and technical guidance.

Which? Trusted Trader

All of our services are rigorously checked by Which? to ensure Timberwise is a company that is reputable and that you can trust.


TrustMark is licensed by Government to endorse quality. Timberwise is vetted to meet the required standards and to provide good quality customer service.


CHAS helps contractors make sure they comply with areas of risk management. CHAS are committed to ensuring that health and safety standards are met and making the world of work a safe place.

Basement Waterproofing Association

Basement Waterproofing Association logo

The British Waterproofing Association is a trade organisation that represents a number of organisations in the waterproofing industry. As a member of the Basement Waterproofing Association, our surveyors have expert knowledge on protecting below ground structures such as basements, cellars, lift shafts and vaults against the ingress of water from the ground.


Constructionline has been working with buyers and suppliers for over 20 years. They ensure that suppliers operate correctly under the health and safety standards that are essential for the construction sector.

Originally created as a government department, Constructionline maintains relationships for a range of industries and open up opportunities for industries to access a wide range of procurement contracts and projects.


Safecontractor is focused on delivering a health and safety accreditation to allow contractors to demonstrate the commitment for providing the best practice to health and safety standards.


SMAS Worksafe is a Health and Safety organisation that is one of the leading provers in the Safety Schemes in Procurement (SSIP). As one of the leading health and safety accreditors, they work with all major organisations across the UK.


Checkatrade logo

Checkatrade is one of the leading directories of tradespeople that runs strict checks on all its tradespeople before they become members. This ensures that members are reliable and trusted to get the job done.